CN104090306B - Radial direction abnormal water-bearing body detection method in coal mine down-hole drilling - Google Patents
Radial direction abnormal water-bearing body detection method in coal mine down-hole drilling Download PDFInfo
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Abstract
Radial direction abnormal water-bearing body detection method in a kind of coal mine down-hole drilling, it comprises the steps of step one: pierce exploration hole at underworkings, orifice position at exploration hole arranges a transmitting wire frame, it is provided with sending and receiving apparatus, step 2: allow three-component receiving transducer fix at the same angle at multiple design measuring points in exploration hole, utilize the azimuth of each point position of inclination measurement device record, inclination angle and roll angle simultaneously；Step 3: the metrical information of each measuring point is recorded respectively and judges exception response；Step 4: traverser position or change discharger angle, repeats step 2 and step 3；Step 5: process gathering data, draws the information of boring low-resistance anomalous body position around；The present invention is provided that the positioning function abnormal to boring low-resistance radially, has both expanded the span of control of boring, strengthens tunnel and meets head on the precision of forward probe, moreover it is possible to points out water-bearing structure target that may be present, point to for next step drilling direction.
Description
Technical field
The present invention relates to the physical prospecting technical field of coal mining, particularly relate to radial direction abnormal water-bearing body detection method in a kind of coal mine down-hole drilling using coal mine down-hole drilling artificial source's time domain electromagnetic induction.
Background technology
At present, along with being continuously increased of coal mining depth, the forward probe of water-bearing structure is significant to Safety of Coal Mine Production.Owing to colliery boring head needs to play a large amount of cover holes, for reaching the scope control to water-bearing structure, the density visiting water hole is very big, the most up to more than 20, time of consuming and costly.
And artificial source's time domain electromagnetic induction method is to utilize earth-free loop line or ground electrode to send pulsed or electromagnetic field of square wave formula to underground, the secondary electromagnetic field that the underground eddy current sensed by this pulse electromagnetic field produces is observed, by the distributional analysis of the room and time of this secondary field is recognized relevant geological problem with coil or ground electrode.Owing to the reception device of Loop source time domain electromagnetic induction method need not ground connection, belonging to non-contact measurement, signal stabilization is easily processed, and it is a preferable selection that the inventor of the present invention thinks that employing the method realizes physical prospecting in boring.
To this end, the designer of the present invention is because drawbacks described above, by concentrating on studies and designing, comprehensive experience and the achievement being engaged in related industry for a long time for many years, research design goes out radial direction abnormal water-bearing body detection method in a kind of coal mine down-hole drilling, to overcome drawbacks described above.
Summary of the invention
The invention aims to overcome the deficiencies in the prior art, radial direction abnormal water-bearing body detection method in a kind of coal mine down-hole drilling is provided, it provides for the boring positioning function that radially low-resistance is abnormal without punching in a large number, expand the span of control of boring, it is indicated that water-bearing structure target that may be present.
For achieving the above object, the invention discloses radial direction abnormal water-bearing body detection method in a kind of coal mine down-hole drilling, it is characterised in that comprise the steps of
Step one: pierce exploration hole at underworkings, orifice position at exploration hole arranges a transmitting wire frame, being provided with sending and receiving apparatus after described transmitting wire frame, described sending and receiving apparatus comprises signal transmission component and signal receiving assembly, and described signal transmission component is connected to described transmitting wire frame；
Step 2: three-component receiving transducer is set in exploration hole, described three-component receiving transducer is connected with signal receiving assembly, allow three-component receiving transducer fix at the same angle at multiple design measuring points by certain degree of depth spacing, utilize the azimuth of each point position of inclination measurement device record, inclination angle and roll angle simultaneously；
Step 3: the metrical information of each measuring point is recorded respectively to corresponding acquisition channel, show to graphically after sending into processing unit, and judge exception response in the graphic；
Step 4: after three-component receiving transducer completes one-shot measurement in a design measuring point, traverser position or change discharger angle, repeat step 2 and step 3；
Step 5: process gathering data, each reception is put the data calibration received to equal angular by the probe attitude information first with inclination measurement device record, secondly determine abnormal section according to Duo Ce road figure and extract anomalous field, receive signal assemblage characteristic according to three-component afterwards and determine the quadrant at low-resistance anomalous body counter bored holes place, normal finally by horizontal component and vertical component signal focuses on out-of-the way position, draws the information of boring low-resistance anomalous body position around.
Wherein: also comprise step 6: in coal seam, drill through multiple exploration hole, repeat step one to step 5 simultaneously, each exploration hole data are carried out joint interpretation, first set up solid space image according to drill hole information, again the low-resistance anomalous body positional information that multiple borings obtain is shown in the picture jointly, post analysis anomalous body dependency from each other, finally the anomalous body that degree of association is high is combined, combines and determine low-resistance anomalous body spatial distribution form.
Wherein: described aperture is positioned at transmitting wire frame or launches outside wire frame.
Wherein: the length of side of described transmitting wire frame is not more than 5m, it comprises the number of turn transmitting line more than 10 circles.
Wherein: when the judgement exception response of step 3, there will be extreme value by Z component graph curve at out-of-the way position, X, Y component map sigmoid curves there will be the basic principle of 0 at out-of-the way position, and before and after abnormity point, data can reversion judge.
By said structure, present invention achieves following technique effect:
1, the positioning function to the low-resistance exception in the range of boring radially at least 15m is provided, on the one hand the span of control of boring is expanded, strengthen tunnel to meet head on the precision of forward probe, on the other hand can designate that water-bearing structure target that may be present, point to for next step drilling direction；
2, in hole, carry out geophysical exploration work, it is not necessary to the i.e. available water-bearing structure spatial abnormal feature around of a large amount of borings, expand boring radially span of control, reach effectively to reduce the purpose of boring layout density.
The detailed content of the present invention can be obtained by explanation described later and institute's accompanying drawing.
Accompanying drawing explanation
Fig. 1 shows the instrumentation plan of the present invention.
Detailed description of the invention
See Fig. 1, it is shown that the schematic diagram of radial direction abnormal water-bearing body detection method in coal mine down-hole drilling of the present invention.
Wherein in this coal mine down-hole drilling, radially abnormal water-bearing body detection method mainly comprises the steps of
Step one: pierce exploration hole 15 for the stratum needing detection in underworkings 11, orifice position at exploration hole 15 arranges a transmitting wire frame 14, it is provided with sending and receiving apparatus after described transmitting wire frame 14, described sending and receiving apparatus can comprise signal transmission component 13 and signal receiving assembly 12, described signal transmission component 13 is connected to described transmitting wire frame 14, with by launching wire frame transmitting signal, described sending and receiving apparatus is also may include up to performance embedded type CPU, quickly to process the data gathered；
As it is shown in figure 1, for detecting the surrounding in coal seam 18, pierce exploration hole 15, in this embodiment, this exploration hole 15 is lateral aperture, launches wire frame 14 and is arranged in the aperture in level detection hole, and operator can be movable, to arrange sending and receiving apparatus in tunnel 11；
Wherein, in described aperture both can be located at transmitting wire frame 14, it is possible to be positioned at outside transmitting wire frame 14；The length of side of described transmitting wire frame 14 is not more than 5m, and it comprises the number of turn transmitting line more than 10 circles；
Step 2: three-component receiving transducer 16 is set in exploration hole 15, described three-component receiving transducer 16 can receive signal transmission component 13 by launching the signal that sends of wire frame 14 and being connected with signal receiving assembly 14 (can be multichannel A/D harvester in one embodiment), three-component receiving transducer 16 is allowed to fix at the same angle at multiple design measuring points by certain degree of depth spacing, signal receiving assembly 12 receives the three-component induced electromotive force signal of three-component receiving transducer 16, utilize inclination measurement device (such as inclinometer simultaneously, electronic compass etc.) record point position azimuth, inclination angle, the information such as roll angle)；
nullIn specifically arranging，A coordinate system is specified by aperture，If regulation drill center point is zero，The positive direction of Z is to bore inner，Then according to cartesian coordinate system rule，X positive direction is to the right，Y positive direction is downward，In specifically arranging，On requirement each measuring point in the borehole, the XYZ three-component measurement direction of three-component receiving transducer 16 should be consistent with the coordinate system positive direction axis of regulation，But during practice of construction，Due to boring the most very straight line，Construction technology also is difficult to ensure that probe positions is consistent with coordinate system axis the most accurately，So in order to rectify a deviation，Need the azimuth towards the coordinate system relatively provided of popping one's head on each measuring point、Inclination angle、The information such as roll angle are recorded，From the later stage processes being and the consistent data of coordinate system positive direction axis specified by the signal correction of reception；
Wherein, design measuring point number, the degree of depth and position be configured according to the thickness in coal seam 18, width etc., do not carry out tired stating at this；
Step 3: the metrical information of each measuring point is recorded respectively to corresponding acquisition channel, can be shown graphically in after sending into processing unit on the display received, or deposit to storage device, and judge exception response in the graphic, can think that the position having exception response carries out repetition measurement or front and back encrypts observation according to display figure；
And when judging exception response, there will be extreme value by Z component graph curve at out-of-the way position, X, Y component map sigmoid curves there will be the basic principle of 0 at out-of-the way position, and before and after abnormity point, data can reversion (by just becoming negative or by negative change just)；
Step 4: after three-component receiving transducer 16 completes one-shot measurement in a design measuring point, traverser position or change discharger angle, repeat step 2 and step 3；
Step 5: process gathering data, each reception is put the data calibration received to equal angular by the probe attitude information first with inclination measurement device record, secondly determine abnormal section according to Duo Ce road figure and extract anomalous field 17, receive signal assemblage characteristic according to three-component afterwards and determine the quadrant at low-resistance anomalous body counter bored holes place, normal finally by horizontal component and vertical component signal focuses on out-of-the way position, draws the information of boring low-resistance anomalous body position around；
Wherein, equal angular here is the aperture XYZ coordinate positive direction that specifies in coordinate system or specified angle (two component angles of major requirement XY must be vertical, differ 90 degree)；
Wherein, extract abnormal section can cut from data without exception in the case of ambient field, extracting pure anomaly field, afterwards according to the form of two component curve of XY, combination determines the concrete quadrant in first, second, third and fourth 4 quadrants of anomalous body X/Y plane in a coordinate system；
Determine that out-of-the way position can be by drawing horizontal component and the tangent line of vertical component every bit, each tangent line is done a normal (vertical line) crossing point of contact again, these normals can cross one another within the specific limits afterwards, many at the normal of the region process having, lacking of some regions process, the position of the zone location exception that optional normal density is maximum；
The method of the present invention also can comprise the steps of:
Step 6: drill through multiple exploration hole in coal seam, repeat step one to step 5 simultaneously, each exploration hole data are carried out joint interpretation, first set up solid space image according to drill hole information, again the low-resistance anomalous body positional information that multiple borings obtain is shown in the picture jointly, post analysis anomalous body dependency from each other, finally the anomalous body that degree of association is high is combined, combines and determine low-resistance anomalous body spatial distribution form.
Wherein, joint interpretation refers to, adjacent boring may all have reflection to same anomalous body, can be with the existence of this anomalous body of multiple authentication with determine its position, the anomalous body information being likely to one borehole reflection is less, the anomalous body information of multiple boring reflections more comprehensively, can put together the anomalous body information of multiple boring explanations the anomalous body distribution considering this survey district, provide more rationally comprehensively physical prospecting explanation.
Wherein, the principle of anomalous body combination has a variety of, the merging combination of some anomalous bodys is such as carried out according to inverse distance-weighting (thinking that there is dependency apart near anomalous body), the natural shape of the anomalous body after merging will not be an isolated point, likely can form continuous print anomalistic object (such as Multiple outliers can connect song (folding) line), naturally can determine that the spatial distribution form of anomalous body.
Thus, can be distributed at the anomalous body drilling through the whole coal seam of middle acquirement of limited (less than 5) exploration hole by the method for the present invention.
By said structure, it is an advantage of the current invention that:
1, can provide, in the radial direction of boring, the positioning function (effective range is up to radially at least 15m) that low-resistance is abnormal, expand the span of control of boring, strengthen the precision of forward probe of meeting head on；
2, it is provided that information, it is indicated that water-bearing structure target that may be present, points to for next step drilling direction.
It is readily apparent that above description and record are only to illustrate rather than in order to limit the disclosure, apply or use.Although describing the most in an embodiment and being described in the drawings embodiment, but the present invention be not intended to by accompanying drawing example and be described as in an embodiment it is now recognized that optimal mode with implement the teachings of the present invention specific examples, the scope of the present invention will include any embodiment falling into description and appended claims above.
Claims (4)
1. radial direction abnormal water-bearing body detection method in a coal mine down-hole drilling, it is characterised in that
Comprise the steps of
Step one: pierce exploration hole at underworkings, the orifice position at exploration hole arranges one
Ray frame, is provided with sending and receiving apparatus, described sending and receiving apparatus after described transmitting wire frame
Comprising signal transmission component and signal receiving assembly, described signal transmission component is connected to described sending out
Ray frame；
Step 2: three-component receiving transducer, described three-component receiving transducer are set in exploration hole
It is connected with signal receiving assembly, allows three-component receiving transducer set multiple by certain degree of depth spacing
Measurement point is fixed at the same angle, utilizes inclination measurement device record respectively to design point position simultaneously
Azimuth, inclination angle and roll angle；
Step 3: metrical information of each design measuring point is recorded respectively to corresponding collection and lead to
Road, shows to graphically after sending into processing unit, and judges exception response in the graphic；
Step 4: after three-component receiving transducer completes one-shot measurement in a design measuring point, move
Wire frame angle is launched in dynamic transmitting wire frame positions or change, repeats step 2 and step 3；
Step 5: process, first with the probe appearance of inclination measurement device record gathering data
State information is by each data calibration of some reception that receives to equal angular, and next is according to Duo Ce road figure
Determine abnormal section and extract anomalous field, receiving signal assemblage characteristic according to three-component afterwards and determine low
The quadrant at resistance place, anomalous body relative detection hole, finally by horizontal component and vertical component signal
Normal focus on out-of-the way position, draw the information of low-resistance anomalous body position around exploration hole；
Step 6: drilling through multiple exploration hole in coal seam, repetition step one is to step 5 simultaneously,
Each exploration hole data are carried out joint interpretation, first sets up solid space figure according to exploration hole information
Picture, then the low-resistance anomalous body positional information obtained by multiple exploration holes shows in the picture jointly,
Post analysis anomalous body dependency from each other, finally the anomalous body that degree of association is high is carried out group
Close, combine and determine low-resistance anomalous body spatial distribution form.
2. detection method as claimed in claim 1, it is characterised in that: described aperture is positioned at
In launching wire frame or outside transmitting wire frame.
3. detection method as claimed in claim 1, it is characterised in that: described transmitting wire frame
The length of side be not more than 5m, it comprises the number of turn more than the transmitting line of 10 circles.
4. detection method as claimed in claim 1, it is characterised in that: sentencing in step 3
During disconnected exception response, there will be extreme value, X, Y by Z component graph curve at out-of-the way position
Component images curve there will be the basic principle of 0 at out-of-the way position, data before and after abnormity point
Can reversion judge.
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| CN106970424B (en) * | 2017-03-17 | 2019-05-28 | 中煤科工集团西安研究院有限公司 | A kind of coal mine hole lane transient electromagnetic is superimposed forward probe device and method |
| CN107843874B (en) * | 2017-10-31 | 2020-04-21 | 北京科技大学 | Method for positioning main coal rock fracture by electromagnetic radiation of premonition of coal rock dynamic disaster |
| CN109343130B (en) * | 2018-11-27 | 2020-09-25 | 中煤科工集团西安研究院有限公司 | Laterally-excited loop source ground well transient electromagnetic detection method and system |
| CN110080740B (en) * | 2019-05-21 | 2021-08-17 | 中煤科工集团西安研究院有限公司 | Method and system for detecting hydraulic fracturing effect of underground coal bed gas |
| CN110531426B (en) * | 2019-08-29 | 2021-11-09 | 山东科技大学 | Device and method for realizing pseudo-rotation of underwater or underground geological structure |
| CN111880233B (en) * | 2020-07-17 | 2023-06-13 | 中煤科工集团西安研究院有限公司 | Direct current advanced perspective detection device and method in underground horizontal drilling of coal mine |
| CN113703063B (en) * | 2021-09-07 | 2023-08-11 | 中煤科工集团西安研究院有限公司 | Advanced detection method for mine azimuth focusing direct current method |
| CN113960677B (en) * | 2021-10-26 | 2023-09-15 | 北京卫星环境工程研究所 | Method for rapidly judging inclination direction of target body |
| CN116449442B (en) * | 2023-06-16 | 2023-08-29 | 安徽惠洲地质安全研究院股份有限公司 | Three-dimensional unfolding processing method and system for drilling transient electromagnetic method |
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| CN102353996B (en) * | 2011-06-28 | 2013-08-21 | 安徽惠洲地下灾害研究设计院 | Directional transient electromagnetic device in drill hole |
| CN102508308B (en) * | 2011-11-03 | 2013-06-05 | 山东大学 | Transient electromagnetic multipoint array-type detection method of tunnel |
| CN103499841B (en) * | 2013-09-18 | 2016-04-13 | 安徽惠洲地质安全研究院股份有限公司 | Hole, lane transient electromagnetic device and measuring method |
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